Earl Cameron who played the part of Dr Robbins, Sapphire's brother,[3] would appear two years later in another English film dealing with racial issues, the 1961 film Flame in the Streets.[4]

Dearden and Green later also collaborated on another 'social problem' film, Victim, although this one was focused on blackmail of gay men before the passage of the Sexual Offences Act 1967 provided limited decriminalisation of male homosexuality.

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The film is about a pregnant girl found stabbed on Hampstead Heath. Although she appears to be white, her brother (Earl Cameron) arrives at the police station to give evidence and he is black. It then becomes evident to the police officers that this girl has been passing for white.[5] This film reveals the underlying insecurities and fears of ordinary people that exist towards another race.[3]